F11: Firefox v3.5.2-2 causes daily system lockouts.

[Daniel B. Thurman]

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.2) Gecko/20090803 
Fedora/3.5.2-2.fc11 Firefox/3.5.2

After extensive testing with the divide & conquer
method, I have discovered that FireFox is causing
all sorts of hissy-fits, the worst, being a complete
system lockout, once per day, requiring a hard-reboot.
This is cause during inactivity, and no, it is NOT the
Gnome screen-saver.  As long as FF is NOT running,
I used my system for 1 week, gnome screen-saver w/
random - not a single lockout, no problems.

The second worse part about FF is the rendering of
the graphics are horrible - extra black lines vertically,
horizontally, both on forums with tables, and some
weird characters every now and then.